This question is asking for a opinion with some facts to back it up, so I will try my best here.
<h3>Answer: Boredom and Frustration</h3>
There are many possible reasons that people bite their nails, like whether a finger nail clipper is available or they have developed a habit.
But there may be more to it than we think, researchers have found that bored and frustrated people bite their nails the most. The younger you are, the more likely you are to bite your nails.
Nearly half of adolescents bite their nails, according to one study, and upwards of 60 percent chewed them in childhood.
<h3>Some other reasons could be: </h3>
Nail Biters Are More Likely to Be Perfectionists
Psychiatric Disorders
Freud Thought It Was About Sex (Of Course)
These just some possible answers, but the main one is Boredom and Frustration.
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